8  CI/FSS/FSV430/450-EN Rev. D | SwirlMaster FSS430, FSS450 VortexMaster FSV430, FSV450 
 
 
2.3.2  Electrical and temperature data 
 
 
Fig. 2:  Power supply in Zone 2, explosion protection, intrinsic 
safety 
 
The minimum voltage U
S
 of 12 V is based on a load of 0 Ω. 
U
S
 Supply voltage 
R
B
  Maximum permissible load in the power supply circuit, 
e.g. indicator, recorder or power resistor. 
 
Power supply / current output / HART output 
Terminals  PWR/COMM + / PWR/COMM - 
Zone 0: Ex ia IIC T4 to T6 Ga 
T
amb
 = -40 ... 85 °C
 1)
 
U
max
 30 V 
I
max
 
See the chapter titled „Limit value tables“ on page 
9 
P
i
 
C
i
  —  13 nF for indicator option L1 
—  17 nF for all other options 
L
i
 10 μH 
Zone 20: Ex ia IIIC T85 °C 
T
amb
 = -40 ... 85 °C 
1)
 
IS/S. Intrinseque (Entity) CL I, 
Zone 0 AEx/Ex ia IIC T6, T5, T4 
Cl I/Div 1/ABCD IS-CL II, III/DIV 1/EFG TYPE 4X 
IS Control Drawing: 3KXF065215U0109 
 
1)  See temperature ranges in the chapter titled „Limit value tables“ on page 9. 
 
 
Digital output 
Terminals  DIGITAL OUTPUT 1+ / DIGITAL OUTPUT 4- 
Zone 0: Ex ia IIC T4 to T6 Ga 
U
max
 30 V 
I
max
 30 mA 
C
i
 7 nF 
L
i
 0 mH 
Zone 20: Ex ia IIIC T85 °C 
Tamb = -40 ... 85 °C
 1)
 
IS/S. Intrinseque (Entity) CL I, 
Zone 0 AEx/Ex ia IIC T6, T5, T4 
Cl I/Div 1/ABCD IS-CL II, III/DIV 1/EFG TYPE 4X 
IS Control Drawing: 3KXF065215U0109 
 
Analog input 
Terminals  ANALOG INPUT + / ANALOG INPUT - 
Zone 0: Ex ia IIC T4 to T6 Ga 
U
max
 
See the chapter titled „Limit value tables“ on page 
9 
I
max
 
C
i
 7 nF 
L
i
 0 mH 
Zone 20: Ex ia IIIC T85 °C 
T
amb
 = -40 ... 85 °C
 1)
 
IS/S. Intrinseque (Entity) CL I, 
Zone 0 AEx/Ex ia IIC T6, T5, T4 
Cl I/Div 1/ABCD IS-CL II, III/DIV 1/EFG TYPE 4X 
IS Control Drawing: 3KXF065215U0109 
 
1)  See temperature ranges in the chapter titled „Limit value tables“ on page 9. 
 
Special Requirements 
The devices must be installed in a protected environment in 
accordance with the specific conditions on the test certificate. 
Pollution degree 3 (see IEC 60664-1) must not be exceeded 
for the macro environment of the device. 
The devices are in accordance with the IP rating IP66 / IP67. If 
the device is installed correctly, this requirement is met 
by the housing as standard. 
When connected to the power supply / not connected to the 
power supply, the electrical circuits must not exceed 
overvoltage category III / II. 
For input limits or analog input limits, see the chapter titled 
„Limit value tables“ on page 9. 
 
   
G11784
10
0
0,2
0,4
0,6
0,8
0,9
1,0
1,2
1,4
1,6
1,8
12
Ex nA / NI
U [V]
S
R[k]
B
Ω
30 40 42 50
20
Ex A /iIS